doubt Quotes

Today the theory of evolution is about as much open to doubt as the theory that the earth goes round the sun.

The word 'belief' is a difficult thing for me. I don't believe. I must have a reason for a certain hypothesis. Either I know a thing, and then I know it - I don't need to believe it.

You mustn't always believe what I say. Questions tempt you to tell lies, particularly when there is no answer.

I say a murder is abstract. You pull the trigger and after that you do not understand anything that happens.

That God does not exist, I cannot deny, That my whole being cries out for God I cannot forget.

Nothing is more obstinate than a fashionable consensus.

Of course it's the same old story. Truth usually is the same old story.

An optimist may see a light where there is none, but why must the pessimist always run to blow it out?

If you would be a real seeker after truth, it is necessary that at least once in your life you doubt, as far as possible, all things.

The first precept was never to accept a thing as true until I knew it as such without a single doubt.